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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head>  <meta name="generator" content=  "HTML Tidy for Linux/x86 (vers 1 September 2005), see www.w3.org">  <title>union</title>  <link href="../cppreference.css" rel="stylesheet" type="text/css"></head><body><table>  <tr>  <td>  <div class="body-content">  <div class="header-box">    <a href="../index.html">cppreference.com</a> &gt; <a href=    "index.html">C/C++ Keywords</a> &gt; <a href="union.html">union</a>  </div>  <div class="name-format">    union  </div>  <div class="syntax-name-format">    Syntax:  </div>  <pre class="syntax-box">  union union-name {  public-members-list;      private:  private-members-list;  } object-list;</pre>  <p>A union is like a <a href="class.html">class</a>, except that all  members of a union share the same memory location and are by default  <a href="public.html">public</a> rather than <a href=  "private.html">private</a>. For example:</p>  <pre class="example-code">   union Data {     int i;     char c;   };           </pre>  <div class="related-name-format">    Related topics:  </div>  <div class="related-content">    <a href="class.html">class</a><br>    <a href="struct.html">struct</a>  </div>  </div>  </td>    </tr>  </table></body></html>

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